Which statement below best describes mutations?
a. all mutations cause organisms hards...
Which statement below best describes mutations?
a. all mutations cause organisms hardship.
b. mutations always good for an organism and the species as a whole.
c. mutations are a change in dna or a chromosome and can be , harmful or may have no affect.
d. mutations occur when the dna is made with out error and the nucleotide bases match up exactly as intended.
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The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false
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